/* Test mp*_class assignment operators.

Copyright 2001, 2002, 2003 Free Software Foundation, Inc.

This file is part of the GNU MP Library test suite.

The GNU MP Library test suite is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.

The GNU MP Library test suite is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
Public License for more details.

You should have received a copy of the GNU General Public License along with
the GNU MP Library test suite.  If not, see http://www.gnu.org/licenses/.  */

#include "config.h"

#include <iostream>
#include <string>

#include "gmp.h"
#include "gmpxx.h"
#include "gmp-impl.h"
#include "tests.h"

using std::string;
using std::invalid_argument;


void
check_mpz (void)
{
  // operator=(const mpz_class &)
  {
    mpz_class a(123), b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // template <class T, class U> operator=(const __gmp_expr<T, U> &)
  // not tested here, see t-unary.cc, t-binary.cc

  // operator=(signed char)
  {
    signed char a = -127;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -127);
  }

  // operator=(unsigned char)
  {
    unsigned char a = 255;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 255);
  }

  // either signed or unsigned char, machine dependent
  {
    mpz_class a;
    a = 'A'; ASSERT_ALWAYS(a == 65);
  }
  {
    mpz_class a;
    a = 'z'; ASSERT_ALWAYS(a == 122);
  }

  // operator=(signed int)
  {
    signed int a = 0;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    signed int a = -123;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -123);
  }
  {
    signed int a = 32767;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 32767);
  }

  // operator=(unsigned int)
  {
    unsigned int a = 65535u;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 65535u);
  }

  // operator=(signed short int)
  {
    signed short int a = -12345;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -12345);
  }

  // operator=(unsigned short int)
  {
    unsigned short int a = 54321u;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 54321u);
  }

  // operator=(signed long int)
  {
    signed long int a = -1234567890L;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -1234567890L);
  }

  // operator=(unsigned long int)
  {
    unsigned long int a = 3456789012UL;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 3456789012UL);
  }

  // operator=(float)
  {
    float a = 123.0;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // operator=(double)
  {
    double a = 0.0;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    double a = -12.375;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -12);
  }
  {
    double a = 6.789e+3;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 6789);
  }
  {
    double a = 9.375e-1;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }

  // operator=(long double)
  // currently not implemented

  // operator=(const char *)
  {
    const char *a = "1234567890";
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const std::string &)
  {
    string a("1234567890");
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const char *) with invalid
  {
    try {
      const char *a = "abc";
      mpz_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // operator=(const std::string &) with invalid
  {
    try {
      string a("def");
      mpz_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // swap(mpz_class &)
  {
    mpz_class a(123);
    mpz_class b(456);
    a.swap(b);
    a.swap(a);
    ASSERT_ALWAYS(a == 456);
    ASSERT_ALWAYS(b == 123);
  }

  // swap(mpz_class &, mpz_class &)
  {
    mpz_class a(123);
    mpz_class b(456);
    ::swap(a, b);
    ::swap(a, a);
    ASSERT_ALWAYS(a == 456);
    ASSERT_ALWAYS(b == 123);
  }
  {
    using std::swap;
    mpz_class a(123);
    mpz_class b(456);
    swap(a, b);
    swap(a, a);
    ASSERT_ALWAYS(a == 456);
    ASSERT_ALWAYS(b == 123);
  }
}

void
check_mpq (void)
{
  // operator=(const mpq_class &)
  {
    mpq_class a(1, 2), b;
    b = a; ASSERT_ALWAYS(b == 0.5);
  }

  // template <class T, class U> operator=(const __gmp_expr<T, U> &)
  // not tested here, see t-unary.cc, t-binary.cc

  // operator=(signed char)
  {
    signed char a = -127;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -127);
  }

  // operator=(unsigned char)
  {
    unsigned char a = 255;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 255);
  }

  // either signed or unsigned char, machine dependent
  {
    mpq_class a;
    a = 'A'; ASSERT_ALWAYS(a == 65);
  }
  {
    mpq_class a;
    a = 'z'; ASSERT_ALWAYS(a == 122);
  }

  // operator=(signed int)
  {
    signed int a = 0;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    signed int a = -123;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -123);
  }
  {
    signed int a = 32767;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 32767);
  }

  // operator=(unsigned int)
  {
    unsigned int a = 65535u;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 65535u);
  }

  // operator=(signed short int)
  {
    signed short int a = -12345;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -12345);
  }

  // operator=(unsigned short int)
  {
    unsigned short int a = 54321u;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 54321u);
  }

  // operator=(signed long int)
  {
    signed long int a = -1234567890L;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -1234567890L);
  }

  // operator=(unsigned long int)
  {
    unsigned long int a = 3456789012UL;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 3456789012UL);
  }

  // operator=(float)
  {
    float a = 123.0;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // operator=(double)
  {
    double a = 0.0;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    double a = -12.375;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -12.375);
  }
  {
    double a = 6.789e+3;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 6789);
  }
  {
    double a = 9.375e-1;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 0.9375);
  }

  // operator=(long double)
  // currently not implemented

  // operator=(const char *)
  {
    const char *a = "1234567890";
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const std::string &)
  {
    string a("1234567890");
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const char *) with invalid
  {
    try {
      const char *a = "abc";
      mpq_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // operator=(const std::string &) with invalid
  {
    try {
      string a("def");
      mpq_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // swap(mpq_class &)
  {
    mpq_class a(3, 2);
    mpq_class b(-1, 4);
    a.swap(b);
    a.swap(a);
    ASSERT_ALWAYS(a == -.25);
    ASSERT_ALWAYS(b == 1.5);
  }

  // swap(mpq_class &, mpq_class &)
  {
    mpq_class a(3, 2);
    mpq_class b(-1, 4);
    ::swap(a, b);
    ::swap(a, a);
    ASSERT_ALWAYS(a == -.25);
    ASSERT_ALWAYS(b == 1.5);
  }
  {
    using std::swap;
    mpq_class a(3, 2);
    mpq_class b(-1, 4);
    swap(a, b);
    swap(a, a);
    ASSERT_ALWAYS(a == -.25);
    ASSERT_ALWAYS(b == 1.5);
  }
}

void
check_mpf (void)
{
  // operator=(const mpf_class &)
  {
    mpf_class a(123), b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // template <class T, class U> operator=(const __gmp_expr<T, U> &)
  // not tested here, see t-unary.cc, t-binary.cc

  // operator=(signed char)
  {
    signed char a = -127;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -127);
  }

  // operator=(unsigned char)
  {
    unsigned char a = 255;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 255);
  }

  // either signed or unsigned char, machine dependent
  {
    mpf_class a;
    a = 'A'; ASSERT_ALWAYS(a == 65);
  }
  {
    mpf_class a;
    a = 'z'; ASSERT_ALWAYS(a == 122);
  }

  // operator=(signed int)
  {
    signed int a = 0;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    signed int a = -123;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -123);
  }
  {
    signed int a = 32767;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 32767);
  }

  // operator=(unsigned int)
  {
    unsigned int a = 65535u;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 65535u);
  }

  // operator=(signed short int)
  {
    signed short int a = -12345;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -12345);
  }

  // operator=(unsigned short int)
  {
    unsigned short int a = 54321u;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 54321u);
  }

  // operator=(signed long int)
  {
    signed long int a = -1234567890L;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -1234567890L);
  }

  // operator=(unsigned long int)
  {
    unsigned long int a = 3456789012UL;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 3456789012UL);
  }

  // operator=(float)
  {
    float a = 123.0;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // operator=(double)
  {
    double a = 0.0;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    double a = -12.375;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -12.375);
  }
  {
    double a = 6.789e+3;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 6789);
  }
  {
    double a = 9.375e-1;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 0.9375);
  }

  // operator=(long double)
  // currently not implemented

  // operator=(const char *)
  {
    const char *a = "1234567890";
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const std::string &)
  {
    string a("1234567890");
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const char *) with invalid
  {
    try {
      const char *a = "abc";
      mpf_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // operator=(const std::string &) with invalid
  {
    try {
      string a("def");
      mpf_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // swap(mpf_class &)
  {
    mpf_class a(123);
    mpf_class b(456);
    a.swap(b);
    a.swap(a);
    ASSERT_ALWAYS(a == 456);
    ASSERT_ALWAYS(b == 123);
  }

  // swap(mpf_class &, mpf_class &)
  {
    mpf_class a(123);
    mpf_class b(456);
    ::swap(a, b);
    ::swap(a, a);
    ASSERT_ALWAYS(a == 456);
    ASSERT_ALWAYS(b == 123);
  }
  {
    using std::swap;
    mpf_class a(123);
    mpf_class b(456);
    swap(a, b);
    swap(a, a);
    ASSERT_ALWAYS(a == 456);
    ASSERT_ALWAYS(b == 123);
  }
}


int
main (void)
{
  tests_start();

  check_mpz();
  check_mpq();
  check_mpf();

  tests_end();
  return 0;
}
